It runs on most operating systems, including Linux, MacOS, Solaris, HP-UX, AIX and Windows.

OSSEC Features:
OSSEC is a full platform to monitor and control your systems. It mixes together all the aspects of HIDS (host-based intrusion detection), log monitoring and SIM/SIEM together in a simple, powerful and open source solution.

OSSEC HIDS Manager/Agent Installation:
Installation of the OSSEC HIDS is very simple. Just follow these few steps to have it working. Please make sure that you understand the type of installation you are choosing (manager, agent, local, etc) and are also aware of the order (always install the manager first). If you don’t know what I’m talking about, it’s a good idea to visit the install types page.

The best installation tutorial is available in the OSSEC book and the installation chapter is available for FREE in PDF at: OSSEC Book - Chapter 2.pdf